Island



Dec. 26, 1922. 1,439,801.

H. K. B. DAVIS, JR.

SAWING MACHINE. FILED MAR. Z, 1922. 4 $HEE[SSHEET l.

IIIITII 1 Dec. 26, 1922. 1,439,801. H. K. B. DAVIS, JR.

SAWING MACHINE.

FILED MAR. 2, 1922. gsnzns-snm 2.

l i i h Eexflllllllllllllllllllm i 5 Dec. 26, 1922. 1,439,801.

H. K. B. DAVIS, JR.

SAWING MACHINE.

FILED MAR. 2, I922. 4 SHEETS- SHEE1IL Dec. 26, 1922. 1,439,801.. H K. B.DAVIS, JR.

SAWING MACHINE.

FILED MAR. 2. I922. 4 SHEETSSHEET 4- Patented Dec. 26, 1922.

unrrsosrAres HENRY K. B. DAVIS, JB., PROVIDENCE,

BHODE ISLAND, ASSIG'NOR TO THE SWING- EITE CO- ENG, 0F PROVIDENCE, RHGDEISLAND, CORPORATION OF RHODE ISLAND.

SAWING Application filed March 2, 1922.

To aid whom it may concern Be it known that I, HENRY K. B. DAVIS,

ant State of Rhode Island, have invented certain new and usefulImprovements in Sawing Machines, of which the following is aspecification.

This invention relates to improvements in the construction of sawing orwood-cutting machines more particularly adapted for operating uponmaterial in strip form and the object of this invention is to provide apair of saws or other cutters havingtheir working faces set verticallyinclined in opposite directions to operate on opposite sides or edges ofthe work and to cut the work preferably with beveled sides it is passedthrough the machine.

A further object of the invention is to provide means whereby the worksupport may be vertically adjusted in its carriage relative to the sawsor cutters so that the depth of cut may be regulated, and also toprovide adjustable means for the work-support whereby one end mayberaised relative to" the other to obtain an end-to-end taper on the workand to regulate the extent of such taper.

A still further object of the invention is the provision of awork-support having elevat-ions or depressions in its work-support- .ingsurface and cooperating means for bond ing the work to follow thecontour of the support whereby when the di'llerentvstrips are cut by thesaws or cutters the finished product will have the contour or shapedesired.

With these and other objects in view, the invention consists of certainnovel features of construction. as willbe more fully described, andparticularly pointed out in the appended claims.

In the accompanying drawings:

Figure l is a side elevation of my improved sawing machine and showing apor tion broken away to better illustrate the intermittent drivingmechanism for the work carriage.

Figure 2 is a plan view of the machine. 7

Figure 3 is a front elevation of my improved machine. 1

Figure dis a side elevation partly in section showing the carriage withthe work-support adjustably mounted therein MACHINE.

Serial No. 540,578.

Figure 5 is a perspective View showing an end portion of the carriage.

Figure 6 is a perspective view showing an end portion of thework-support detached from the carriage.

Figure 7 is a side elevation of the worksupport which is provided withraised and depressed portions along its work-supporting surface wherebya thin neck portion of undulating shape may be formed in the work whenout by the saws.

Figure 8 is an end elevation at the section line 8-8 in Figure 4 showingthe carriage as mounted in its dovetailed ways and the screw adjustmentfor raisingthe work-support in the carriage.

Figure 9 is an end elevation showing a section of the work-support withthe work mounted thereon and showing the presserfoot as supporting thework while bein cut by the saw on the opposite side "thereon Figure 1.0is the same as Figure 9 showing the pressenfoot and the roller-guide forholding the work onto its support and assisting in supporting it whilebeing cut by the saw on the opposite side.

Figure 11 shows the'work on its support after having been acted upon byboth of the saws. i

Figure 121's a side elevation of the work guide supporting frame mountedabove the work and. adjacent the operating position of the two saws andshowing the guides for supporting the work while being acted upon by thesaws.

Figure 13 is a bottom edge view of the guide frame inverted with itsvarious workguiding members.

Figure 14: shows a finished strip of mate rial cut into \l shape incross section and tapered gradually from end to end.

Figure 15 shows a strip of finished material as V-shape in cross sectionvarying in its size and taper, being smaller at a point intermediate itsends due to the acting of the saws upon the stock while in a bent ordistorted position.

Figure 1.6 is a perspective view showing the end portion of a sectionalshaft built up of a series of V-shaped strips cut on my improved sawingmachine.

Figure 17 is a detail showing a dash-pot for cushioning the carriage atthe outer end of its stroke.

Finn re 18 shows a modified form of" a single cutter having a beveledface..

Figure 19 shows a pair oi the cutters shown in Figure 18 assembled toprovide a disc having a V-shaped cutting groove.

it is found *in practice desirable to provide sectional "shafts for"arious 'inlrposes such for instance those used in the ronstruction 01?golf clubs, base ball bats, and other purposes in order to nicelycontrol their weight and flexibility, and it .is particularly desirousin the (tonstruction1.051? shafts 't'or golf clubs to formethem oi.atou-gh, fibrous material such for instance as bamboo and the like whichis verylight in Weight and of the desired flexibility, rigidity andtoughness and in order to properly prepare the bamboostalk I first splitit into st "ips-and then saw the strips into substantially .V- shape incross section and subsequently build up or form the completedshaft of aplurality of these sections. My present invention, Fhoweve'r, vrefers toa sawing machine *for preparing these strips and the following is adetailed description of one construction of suchma chine by which thestrips may be cut into thedesi-red shape to be qassernbled.

With reference e'tO the drawings 2U designatesthe bed'o'f my in'iprovedsawing ma- .chine, which is pro-videdwith dovetailed guid s-21 inwhich-the carriage member 22 slides. lhis rarriage member is providedwith anarro'w, upstanding, central rib 22-3 which,islongitudinallyigrooved as at A tor ,tlie receptionof'the work support25, and at the opposite ends'of the carriage this rib .is'but away at:26 and a screw-threzuled adjustmentqstud 27 is threaded into thesecut-away portions of the carriage, the upper endi28ioffthescrew engagingthe under side of the Work-support and an adjusting "Wheel mountedonjthestud, the same being graduated on its edge to cooperate with a pointer30 whereby a micrometer reading of the adjustment of the su iport may beobtained. This screw member ish'ionnted at either-endof this carriagethereby permitting the same to be adjusted vertically bodily todetermine the depth oil the saw cuts in-to' the worker one end of thesupport maybe raisedrelatireto the other to determine t'lie end tmendtaper ofthe cutsby the saws.

El e saws 3-1,:as-bestillustrated in Figures =2 *and 3, are. preferablymounted upon the saws-being arranged. to overlap each other by the worm{l1 and worm-wheel L2, and I haVeconnected a weight 43 by acord .44 at115 to the under side of the carriage whereby when thegearBQ has made arevolution to move the carriage with its work through the machine itthen presents its blank space 46 to the rack which thennnder action ofthe weight;43,;permitsthe carriage to return quickly to its startingposition, the finished work is now replaced by fresh work by whichtimethe teeth of the gear beyond the space again engages the rack repeatingthe advancing,- operation of the carriage to presentthis fresh workto beoperated upon by the saws.

To facilitate setting of the work upon its supportl have provided afixed table ll supported by brackets 48 lirom the base of the machine inposition to earrya number o't-untinished straps on one side, while theopposite side of the table is provided with guide fingers -.-l-9 setupright on the table to facilitate the rapid and accurate positioning ofthe work onits support. To assist in holdin the outer end of the work Ihave provided a spur member 50 located on the end of the work-supportsee Figure 4,

edge of this supporting member 635 is "prob erably grooved as at 51pi.'o\-*i(flin; a pair oil? spaced apart, sharp, bearing edges 53 onwhich the work 52 rests.

it is found. in practice that owing to the varying *urvature in mosssection. oi" outer l and more secure support-1s pro 1 L portin the workon two spacedapart edges 1g lel'igthways oil: the we l. illuss 8 to llinclusive. The work i. .irst positioned on. its sup port with its outercurved siu'face resting upon the edges 533 o f the support, its outerend being secured to the support by 8. 619111 50. The work by -means oiits carriage is new advanced beneath the guide roll 54: which is mountedbetween pair of arms 55, pivoted at 56 on the frame 57 and is undertension of spring 68, which rol-l serves to press the Work downfirm-lyvonto its sn pport. The work is next engaged by the resser-toot 58 whichis hinged at 59 and is pressed inwardly y spring 60 being lin'iited inits inward swing by a screw 61. in the finger 69;. This presser footserves to press and support the opposite edge of the work whilebeingacted upon by the first saw 31, see Figure 9. The work now ad-Va-11068 and the strip which is being sawed from the work is engagedandseparatedor sprung ofl' from; the work by the splitter finger 64. Thefirst sawed surface on one side oi the work is now engaged by thebeveled roller mounted in the adjustable arms it) which rolls cooperatewith the messer-ii'oot (iii to hold the work down onto its support whilethe second saw 31 is operating on the opposite side of the Work thusacourately controlling the depth of cut to be taken by this second sawand as the work still further advances the member 67 splits or springsoil the sawed portion from the strip While the presser-foot 68 engagesthe outer end of the work to continue to hold it in position. on itssupport until it l1as entirely passed. through the machine and beenoperated upon by both the saws.

Each. time after, the work has been passed. through the machine, theblank portion 46 of the gear is presented to the rack 38 permitting thecarriage to quickly return to its starting position under action of itsWeight 43, when the finished work is removed and replaced by fresh workready to be passed through the machine as above described.

When a. shaft witll' a straight taper, is

desired to be producecha work-support sinn-v lar to that illustratedinFi 'i'ire 4.. is ureca J i vided having a straight taper from end toto the minimum.

end that is its supporting edges converge and one end of the support israised higher than the other, thereby producing work such as thatillustrated in Figure 14 with a straight taper from one end to theother.'

By providing converging supportirm edges it will be seen that the workis always supported close to the line of out thereby reducing thepossibility of spring of the Work Where work is produced such as thatillustrated in Figure 15 having such for instance as a reduced neck porat 69 and an enlarged end portioiii work support havi a support. similarto that illustrated in Figs-.1? is provided wherein araisedportion 71 onthe support corresponds with the reduced portioi'i 69 in the work andthe reduced portion 72 in this support corresponds to the enlargedportion 73 in the Work so that when. this shape of work is desired thisstyle of support is employed and the work being 01"? a flexible natureis pressed by the diiferent presser members down onto the support andcaused to follow the supporting contour thereof so that after havingbeen sawed or out, when tion.

sprung to normal will correspoiiul to that of the contour ot the supportas illustrated. in. Figure 15. or the contour of the support may be inany desired form to produce work ot'any desired. shape.

in. order to absorb the shock. oi the i'apidly returning-,2; carriaire 1have mounted a spring butter or dash pot 741 which is engaged by thecarr e as it MQPLOtlQllQS the outer end ot its $131 oketo send it backto its starting posiln some instances instead oiemploying: saws set atan angle for cutting: the wood. a pair of cutters 75 each having itsteeth set at the desired angle to the plane of its face or the plane ofits rotation maybe employed such as that illustratedin Figure 18, or instill other cases a pair of such cutters 76 may is set togetherproviding a single cutter having; a V-shaped toothed groove, may beemployed such as that illustrated in Figure 19.

By the use of my improved sawing or outti ng machine the edges of stripsof materials may be very rapidly sawed with beveled edges or it may besubstantially V-shape in crosssection if desired and the sawed stripsmaybe assembled. to tormsectiona] shatts or members "tor any desiredpurpose.

By the use oi my improved machine it will be se :1 that the oppositesides of strips bamboo may be accurately cut at the desired angle incross section. and also with the desired end-to-end taper and thatwithout. disturbing or removing the outer surface or shell of the Woodwhich is extremely hard and tough and which it is very desirable to bepreserved inorder'to obtain the maximum. strength to the built-up shaftformed of it.

The foregoing description is directed solely towards the constructionillustrated. but ll desire it to be understood that I reserve theprivilege of resorting; to all the mechanical changes to which the,device is susceptible. the invention being defined and limited only bythe terms oi the appended claims- I claim.

1. A machine For cutting str p ot wood. comprisine' cutters arranged tooperate on the oppos te sithi 0d the strip. to out the same on converlriiigritudinally disposed e? strp support in the machine having arelativelylongitudinal. travel with re pect to the cutteni. and me itorEttljltf-itill 4' ends o l id siji iiport i or tically to set iton anincline lo the plane o i said longiindiiuifl travel. whereby the outtars are caused to cut the strip on an end-toend taper as it passesthrough the machine.

2. A machine for cutting a strip of wood comprising cutters arranged tooperate on the opposite side edges or" the strip to cut the same onconverging angles, an extended support for the Work having end-to-endters and support having a relative longitucon verginv' strip-supportingedges, the cutdinal travel and means for separately adjusting theopposite ends of said support vertically relative to the cutters todetermine the inclination of said support to the plane of said travel byWhich an end-to-end taper of the stripmay be produced by action of thecutters upon it.

3L In a machine "for cutting strips of ood, a carriage, means fordriving the same, a strip-support in said. carriage having end-to-endconverging strip supporting edges, cutters for operating on oppositeside edges of the 'stripto cut the same on co11- verging angles, andmeans for adjusting said support in said carriage relative to saidcutters to control the depth of cut and Wood, cutters arrangedto operateon oppositely-disposed vertically-inclined planes to also to produce anend-to-end taper of the strip by action of said cutters upon it.

4. In a machine for cutting strips of Wood, inclined cutters arranged tooperate on opposite sides of the work to cut the side edges thereof on abevel, a longitudinallymovable carriage, a Work-supporting memhermounted on said carriage, andmeans for providing relative verticaladjustment of the ends of said support in said carriage whereby itsheight and inclination may be regulated to determine the depth of thecut and its taper from end to end.

5. In a machine for cutting strips of wood, cutters to operate onoppositely-disposed vertically-inclined planes to cut the sides of theork to ii-shape, a longitudinally-movable carriage, a vvorlnsupportmounted on said carriage and having a vertical screw adjustment at itsends whereby the depth of the cuts and the 'end-t0.-end taper of theWork may be regulated.

6. In a sawing machinehaving a pair of saws arranged to operate onoppositely-disposed vertically-inclined planes to cut the sides of theWork to V-shape, a longitudinally-movable carriage, alongitudinallydisposed Work-support on said carriage havingalongitudinalconcavity for a portion only of its Work supporting surface,and presser means for depressing the Work into said concavity.

7. In. a machine for cutting strips of Wood, a carriage, means fordriving the same, a strip support in said carriage, cutters foroperating upon opposite sides of the strip to cut its edges onconverging angles, a Work-support having a longitu dinal depression init for a portion. only of the length of its Work-supporting face, and afixedgnide member for depressing aportion ,of'the Wonk tojfollo v thecontour of said depression.

8. In a machine for. cutting strips of Wood, cutters to operate onoppositely-dis posed vertically-inclined planes to cut the sides of theWork to V-shape, a longitude of its length, and means forbending theWork to follow the contour of said Work;

support as it is presented tothe cutters soas to produce acurveclcontour in the Work.

9. In a machine for cutting strips of u th s des of the Work to V-shape,a longitudinally-movable carriage, a Work-sup port mounted on saidcarriage, the Work-engagi g section of said support being P vided With alongitudini 1 v concavity for a portion of its length, anda pressermember fixed relative to the carriage for bending the Work to follow thecontour of its support While passingand being acted upon by thecuttersto produce a curved contour inthe work. i l

10. In a machine for cutting strips of Wood, a cutter arranged tooperate on oppositely-disposed vertically-inclined planes to cut thesides of the Work to V-shape, a longitudinallynnovable carriage, averticallyadjustable Work-support mounted on said carriage, and arelatively-fixed frame carrying one or moreyieldably mounted down-Wardly pressing and laterally guiding and supporting members forretaining the Work in proper position on its support Whilebe ing acted.upon by said cutter. l

11. In a machine, for cutting a strip of wood, cutters arranged tooperate on opposite sides of the Work and vertically-ins clined inopposite directions, a longitudinally-movable carriage having alongitudinally-disposed grooveltherein, a Work-support adjustablymounted in said groove, screw-threaded adjustment for moving saidsupport vertically in said groove, and means for locking said support inadjusted. position.

In. testimony WhereofI afiix my signature.

HENRY K. BQDAVIS, In. j

